Tentering-machine.



. PATENTBD MAR. 5, 1907. H. L. QUICK. TENTERING MACHINE. APPLIOATIONFILED JUNE 20.1905.

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TBNTERING MACHINE. AI'BLIOATIONIILBD JUNE 20,1905.-

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No. 845,817. PATENTED MAR. 5,1907. H. L. QUICK. TENTERING MACHINE.APPLICATION FILED JUNE 20.1905.

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TENTERING MACHINE.

APPLICATION FILED JUNE 20.1905.

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TENTERlNG-IVIACHINE.

Specification of Letters Eatent.

Application filed June 20, 1905. Serial No. 266,179.

Patented March 5, 1907.

To all whom, it may concern:

Be it known that I, HOWARD L. QUICK, a citizen of the United States ofAmerica, and a resident of the borough of Brooklyn, city of New York,county of Kings, and State of New York, have invented certain new anduseful Improvements in Tentering-Machines, of which the following is aspecification.

My invention relates to tentering-machines for treating textile fabricsof the class wherein two endless chains or conveyers consisting ofclamps are combined with mechanism for reciprocating said conveyerslongitudinally bodily simultaneously in opposite directions and at thesame time moving them toward or from each other while they are beingdriven, so as to stretch the fabric on a diagonal line while feeding itforward.

The object is to so arrange and construct the mechanism which drives theendless chains or conveyers, consisting of clothclamps, as to permit thesimultaneous longitudinal reciprocation of the conveyers on each side ofthe machine in opposite directions and at the same time permit theseconveyers to be moved toward ahd'away from each other without anyirregularity in the speed of movement of the conveyers and without anyinterference with the correct operation upon the cloth and the even andregular stretching of the same in the manner and for the purpose inview.

Additional objects of the invention, as well as various details andpeculiarities in the construction and ctanhiationof the parts, will behereinafter more fully described; and it may be said that the inventionconsists, essentially, in the construction, arrangement, and combinationof parts, substantially as will be hereinafter described and claimed.

In the annexed drawings, illustrating my invention and constituting apart of this specification, Figure 1 is a top plan view of one portionof the machine and the driving mechanism. Fig. 2 is a top plan view ofthe other end portion of the machine. Fig. 3 is a side elevation of thatpart of the machine represented in Fig. 1. Fig. 4 is a side elevation ofthat part of the machine represented in Fig. 2. Fig. 5 is a left-handend elevation of the machine as represented in Fig. 1 and illustratesparticularly the driving mechanism for the chains carrying the clamps.Fig. 6 is a transverse section of the machine, showing an intermediatesupport and a mechanism for adjusting the longitudinal conveyersrelatively to each other. Fig. 7 is an enlarged cross-section throughone of the reciprocating conveyers or frames and shows the end of one ofthe pivoted cross-bars, together with the means for adjusting the framesor chains. Fig. 8 is a plan view of a couple of cloth-clamps, showingthe way in which they are linked or connected to each other. Fig. 9 isan end elevation of the machine, showing a modified form of mechanismfor driving the chains. Fig. 10 is another end elevation of the machine,showing a further modification in the mechanism for driving the chains.Fig. 11 is a diagram indicating the action on the cloth during thevibration of the side frames carrying the chains. Fig. 12 is a detailplan view on line 12 12 of Fig. 5, showing gears 67 69 and interveninggear 70.

Similar characters of reference designate corresponding parts throughoutthe dilierent figures of the drawings.

I Un each side or the machine is an endless chain consisting of a seriesor cloth-clamps 72, each having a pivoted clamping-plate 71, whose edgeis movable up and down away from or toward a bed or table on which itclamps the cloth. 'lhese clamps are linked or pivoted together in somesuitable manneras, ror instance, by the pivots 100, as shown in Fig. 8.For convenience or illustration the detailed construction of the clamps72, while shown as to one form in Figs. 7 and 8, is omitted in Figs. 1and 2, and in lieu thereo; dotted rectangles 1 serve to delineate thelinks, the latter being shown as being carried by the longitudinallateral horizontal rrames 2 and 3, which irames reciprocate endwise andalso are moved bodily toward and away rrom each other during theoperation of the machine. The chains 1 pass around sprocket-wheels 4 and5 at the lert-hand end or the machine and similar sprocket-wheels 6 and7 at the right-hand end. Both ends of the frames 2 and 3 are enlarged,so as to be somewhat wider than the diameter of the sprocket-wheels, andthese frames 2 and 3 are made up or' a plu raiity of sections unitedtogether at points where the horizontal pivotally-supported cross-bars Sand 9 are located. in Fig. 7 the construction or the frames 2 and 3 isrepresented vs ith considerable detail, and there it is seen that eachor these rrames consists or two parallel ways, channels, or guides 10and 11,

IIIO

separated by an intervening partition 12, on which is a flat overhangingplate 13. The channels 10 and 11 contain the chains 1, so that the linksof these chains, carrying the cloth-clamps 72, travel up one side anddown the other side, or, in other words, travel in one direction in onechannel, as 10, and in the opposite direction in the companion channel,as 11. The flat plate 13 on the top of the partition 12 and extendingpartly over each of the channels 10 and 11 while serving to confine thechains and guide them in their movement permits the clamps 72, belongingto each link, to project through the tops of the channels and along outover the frame, so as to occupy a position where the edge of the clothis easily grasped by the clamping-plate 71. Near the ends of the machineare the pivotally-supported cross-bars 14 and 15,

which are identical in construction with the cross-bars 8 and 9.

I will proceed now to describe the construction and arrangement of thecross-bars 8, 9, 14, and 15. Each is carried by a support 16, (see Figs.4 and 5,) which has a pivot 17 in its upper end, on which the cross-barturns. (See Fig. 6.) Each bar has longitudinal horizontalflanges 18 oneach side of its upper flat face 19, on which face 19 slides a segmentalblock 20, having depending jaws 21, which embrace the flanges 18 andkeep the block 20 on the cross-bar. (See Figs. 6 and 7.) Through the twoblocks 20 at both ends of any particular cross-bar, as 8, plays ahorizontal rod 22, having near each end sections thereof provided withreversely-cut threads which engage threads within the blocks 20, and theends of the rod 22 are provided with hand-wheels 23, so that as saidhand-wheels are revolved the blocks 20 are caused to approach each otheror recede from each other, according to the direction in which the rod22 is revolved. This rod 22 is supported in bearings 22 22, projectingfrom the upper side of the bed 19 near the middle of the cross-bar 8,(or 9 or 14 or 15, as the case may be.) The upper face of each block 20is provided with a stud-bolt 24, serving as a pivot and entering aperforation in the hub 25 of a plate 26, which lies on the face of theblock 20. This plate 26 is free to move on the stud 24 as a pivot, inthis movement sliding on the top surface of block 20, and said plate 26has in its upper side a radial dovetailed groove (see Fig. 7) to receivea slide 27, the latter having a depending arm 28 at its front end, inwhich is swiveled the end of a screw 29, turning freely therein, andhaving a threaded portion which engages and turns within asimilarly-threaded opening in the plate 26. The screw-rod 29 is providedwith an' operating-wheel 30. When the screw 29 is turned by themanipulation of the hand-wheel 30, the slide 27 will be caused to changeits relation with the plate 26 and be moved toward or away from thepivot 24. The various slides 27 support the frames 2 and 3, and eachslide has, as shown in Fig. 7, on its upper side dowel-pins 31, enteringholes in the sections of the frames 2 and 3. Inasmuch as the frames 2and 3 are made in sections and I have said that these sections areconnected together at the points where the cross-bars 8 and 9 arelocated, it will be evident that ifthe two abutting ends of contiguoussections are connected to the same slide 27 by dowel-pins 31 or otherequal securing means the sections of the frames will be united at thesepoints and so combined as to provide a strong and serviceable structure,and it will be observed that the screw-rods 22 and 29 are thus able toprovide for a delicate adjustment of the frames 2 and 3 eitherindependently or relatively, the hand-wheels and 23 for operating thesescrews being at the sides of the machine, where they can be very readilylaid hold of for use. The operation and results of the adjustment ofthese screws 2 and 29, particularly the latter, will be more clearlyevident after inspection of the diagrammatic view in Fig. 11, where itwill be seen how it is possible to move the lines of the clamping-plate71 nearer to each other and over and beyond the pivots 24.

Referring to Fig. 7, it will be seen that the edge of the clamping-plate71 is directly above vertically the center of the pivot 24, and this isindicated. by the dotted line 90 x, which is dropped vertically throughthe edge of the clamping-plate 71 and the center of the pivot 24. Bymanipulating the screw rod 29 it will be seen that the edge of theclamping-plate 71 can be shifted in the direction of the arrow at y orin the direction of the arrow at 2, being thus carried beyond the centerof pivot 24 in one direction or the other. Now when the lines of theclampingplate 71 have been moved toward each other, as shown in Fig. 11,and consequently over and beyond the pivots 24 in the direction of thearrow 0 the line a a will indicate the distance between the clamps orthe width of the cloth to be treated, which cloth is held by the clamps.During the reciprocal movement of the frames 2 and 3 and their vibrationtoward each other the pivots 24 will travel along the circular paths 0,and while the points where the cloth is clamped are retained in theirhorizontal relationship by the frames 2 and 3 the transverse threads ofthe cloth on the lines a a will be shifted to occupy the line b b whenthe frames are oscillated. The line b b is longer than the line a a, asis evident from the dimensions in the diagram in Fig. 11. (Notice inparticular the dotted arcs (Z d.) Hence the threads at one time in theposition of line a a will when placed in the position of the line b b bestretched, and this is what occurs along the whole length of the frames2 and 3 and upon all of the threads of the cloth when the cross-bars 8,9, 14, and j 15 are swung around to the limit of their oscillation, asindicated by the dotted lines in Fig. 11. Obviously when the line of theedges of the clamping-plates 71 is in the vertical line a; a: in Fig.7that is to say, when it is directly over the center of the pivot 24-thedifference between the lengths of the line a a and Z) bwill be m l; butthe more the lines of the clamping-plate 71 are adjusted toward eachother or in the direction of the arrow y the greater will be thedifference between the lines I) b and cm, and consequently the greaterthe stretch or strain on the threads of the cloth, and, conversely, thefarther the lines 7 1 are adjusted away from each other or in thedirection of the arrow at z the shorter will the line b b be than theline a a and the less the strain on the transverse threads of the cloth.j

' ternieshing gear-wheel 52 on the shaft 51 For the purpose ofoscillating cross-bars 8, 9, 14, and 15 and reciprocating thechain-carrying frames 2 and 3 I journal a shaft 32, which receivesmotion from any suitable source of power about midway of the machine,(see Fig. 2,) and provide its inner end with a pinion 33. This pinion 33through the gear-wheels 34 and 35 rotates a shaft 36, carrying a beveledpinion 37, meshing with the teeth of a wheel 38 on the same uprightshaft 90 which carries the horizontal disk 39,

which disk is thus geared down to a comparal tively slow rotation. Thedisk 39 has on its upper face a wrist-pin 40, engaging one end of apitman-rod 41, whose other end is pivoted to a pin or stud 42, (see Fig.1,) rising from a sliding block 43, which reciprocates in the slot 44 inthe frame 45. A link 46 connects the stud 42 with a stud 42, dependingfrom the cross-bar 8, so that with the rotation of the disk 39 theseveral cross-b ars are all caused to swing into the positions indicatedin dotted lines in Figs. 1 and 2 and the plates 26 swing on their pivots24, thus allowing the frames 2 and 3 to retain their parallel relationship, although moving toward each other and although reciprocatingin opposite direc tions. The frame 45 is located in a diagonal positionat an acute angle to the adjacent lateral frame 3. While the block 43moves up and down in its slot, it moves obviously on a line of similarobliqueness to the frame 3, which line is consequently at an obtuseangle to the cross-b ar 8, and on reaching the end of its forwardmovement the link 46 and its cross-b ar will, as shown in dotted linesin Fig. 1, be thrown into such relative positions as to avoid too acuteangle at their point of connection, and thus prevent buckling.

The clamp-carrying chains, which, as I have shown, are supported in theside frames and driven up and down therein and around the endsprocket-wheels, are driven by suitable mechanism, which is best shownin Figs. 3 and 5. 47 denotes a driving-pulley revolving in the directionshown by the arrow.

.1 to back with gear 59.

Pulley 47 is carried by a horizontal shaft 46, suitably journaled in themain frame 48 and having on its inner end a beveled pinion 49. Ahorizontal bevel-gear 50 engages with the pinion 49. Gear 50 is on anupright shaft 51, which is sustained in its upright position by astandard 53, which has an overreaching arm 54 or strut in which hangsand-is pivoted a sleeve 55, carrying a horizontal shaft 56, fur thersupported by rollers 57 at each end thereof, on which rollers the shaft56 easily rotates. These rollers 57 are carried by the horizontalstationary segments 58, whose upper faces are dressed and lubricated, sothat the said rollers may move freely back and forth on the horizontalfaces of the said segments 58. Fastened to the shaft 56, so as to rotatetherewith, are the bevel gear-wheels 59, 60, and 61.

near the upper end thereof. It is to be particularly noted that bevelgear-wheel 52 is of the same size as gear-wheel 59 and also that thegear-wheel 60 occupies the same relative position on shaft 56 as thegear-wheel 61 that is to say, its cogs are so placed relatively to thecogs of the gearwheel 59 as to perform the same work as gear 61, thoughgear 61 is face to face with gear 59 and gear 60 is back Gear 60 engagesa horizontal bevel-gear 62, and gear 61 engages a similar horizontalbevel-gear 63. Gear-wheel 62 is carried by the bracket 64 on the frame 2and gear-wheel 63 by bracket 64 on the frame 3. The lower ends of theshafts of the two wheels 62 and 63 are supported by the sleeves 65 onshaft 56, and these shafts respectively carry gear-wheels 66 and 67,said wheel 66 meshing with a wheel 68 on the lower end of a short shaftjournaled in the end of the frame 2 and carrying on its upper end thesprocket-wheel 4. The sprocketwheel 5 in frame 3 is carried by a shortshaft having on its lower end a gear-wheel 69.- Between the gear-wheel69 and gear-wheel 67 is interposed an idler-pinion 70, which performs animportant service in giving to the sprocket-wheel 5 a direction ofmotion the reverse of that of the sprocket-wheel 4, as shown by thearrows. 1 have already said that the gear-wheel 52 is of the same sizeas the gear-wheel 59. It is necessary now to further state that thegear-wl'ieel 60 must be of the same size as the gear-wheel 62 and thegear-wheel 61 of the same size as the gearwheel 63. If, however, thegear-wheel 59 were made of the same size as the gear-wheel 60 and thegear-wheel 62 of the same size as the gear-wheel 52, the same resultwould be accomplished, in which case the gear-wheel 63 would be of thesame size as the gear-wheel 52. Moreover, it must be understood that thegear-wheel which imparts motion to the gear-wheel 59 must apply itspower to said wheel'59 on the opposite side of the axis of Gear 59 isdriven by an inthe shaft 56 from that on which the driven gear 60 (orthe driven gear 61) applies its power to the companion gear 62, (or thecompanion gear 63.)

It is of the highest importance in the operation of a machine of thischaracter that the movements of the endless chains, and consequently ofthe clamps which hold the cloth, should be regular and not halting orjerky or such as to result in uneven tension being put on the cloth orunequal strain, besides an uneven puckering in the surface of the clothwhile under treatment. The irregular movement in the chains, which hasheretofore been common with machines of this class, the chains runningsometimes slower and sometimes faster and lacking uniformity andprecision, is productive of very bad results, and I aim to overcome thisby the mechanism which I have just described and wherein the gears arerelated as I have set forth. This irregularity in the speed of thechains ordinarily has heretofore been largely due to the fact that thegears were not properly arranged to admit of the complicated movement ofthe mechanism, which involves, as is readily seen, the double action ofthe shaft 56to wit, a rotation about its own axis and a horizontaloscillation about the axis of the gearwheel 52, which imparts motion tothe shaft 56.

As the shaft 56 rotates on its axis and at the same time oscillatesabout the axis of gear 52, it must be obvious that While it is beingrevolved forward in the direction of the arrow as the result of theinteraction. of

the gears 52 and 59, said gear 59 is in consequence of the horizontaloscillation of the shaft moving backward, and consequently a certainamount of the forward rotation of saidshaft 56 is lost, which loss iscommunicated similarly to the gear-wheel 60, which engages gear-wheel62, which through gears 66 and 68 transmits motion to sprocketwheel 4.As gear 62 is a horizontal gear and rotates in a horizontal plane andalso is carried backward with the gear 60 along an arc of which the axisof gear 52 is the center, it is obvious that the motion lost by thebackward movement of the vertical gear 60 is recovered by the horizontalgear 62, and hence this gear revolves uniformly and the sprocketwheel 4likewise has a regularity of rotation, and consequently the chain movesevenly, but this correction bf the movement of the chain is madepossible by making the gears 52 and 59 and the gears 60 ar. d 62 of thesame size as already explained. Hence I correct and overcome what hasheretofore been found to be an insurmountable difficulty by making thegear-wheel 52 equal to the gear-wheel 59 in size ard the gear-wheel 60equal to the gear-wheel 62 and by having the point at which thegear-wheel 52 applies its power to the gear-wheel 59 on the oppositeside of the axis ofshaft 56 from where gear-wheel 60 applies its powerto gearwheel 62; but such a correction on one side of the machine in thedriving of one of the chains would be useless and'purposeless if therewere not a corresponding correction in the movement of the chain on theother side of the machine. Consequently I locate the gear 61 on shaft56, so that it will do the same work as is done by gear-wheel 60, itsapplication to the shaft being the same as that of gear-wheel 60, andhence when the gear-wheel 59 moves backward the gearwheel 61 also movesbackward, and consequently exactly the same retardation is given to thegear-wheel 61 as is given to the gearwheel 59; but this loss is regainedby horizontal gear 63, and hence the chain on this side of the machineis moved in exact correspondence with the movement of the chain on theother side. Inasmuch as it is essential that both inner rows of clampson the chains should move in. the same direction, it is necessary toinsert the intermediate gear between gears 67 and 69 in order that thesprocket-wheel 5 may revolve in the opposite direction from thesprocket-wheel 4. The same result is of course accom plished if thegear-wheel 61 is made equal in size to the gear-wheel. 59 and thegear-wheel 63 equal in size to the gear-wheel 52. In this description ofthe backward movement or drag on the shaft 56 and a retardation thereof,when I have spoken of the oscillation of this shaft I have been assumingthat the movement of that one-half of the shaft carrying the bevelgear-wheel 59 was in the direction of the arrow at in Fig. 1 and not toward the position of shaft 56, (shown in dotted lines in that iigure,)or, in other Words, that the oscillation of the shaft at d the gear 59was a forward and not a backward oscillation, which forward oscillationby gaining upon the gear-wheel 52 causes a retardation.

When the shaft 56 oscillates backward, or takes the position shown indotted lines in Fig. 1, the reverse result ensues to that when it ismoving the other way, for in this backward movement the gear-wheel 59gains on the gear 52 and causes an acceleration of motion, and inasmuchas the revolution of y the gear-wheel 59 is the same as that oi thegear-wheel 60 and as gear-wheel 62 is the same size as gear 60, thisaccelerated motion is lost when gear-Wheel 62 rolls on gearwheel 60, andan exactly identical motion is communicated by the gear-wheel 61 to thegear-wheel 63 and the sprocket-wheel 5, except that through thearrangement of gearing sprocket-wheel 5 revolves in a reverse directionto that of the sprocket-wheel 4. In this manner therefore the movementof chains on the two sides of the machine is made precisely equal,uniform, and identical, and

there is no such variation or irregularity as to cause a puckering ofthe cloth or an uneven stretching thereof. Of course the sizes of thegears may be changed as much as desired, but it is essential that thesegears should in whatever changes are made therein conform to thefollowing proportion: gear 59: gear 52:: gear 60: gear 62:: gear 61:gear 63.

In Fig. 9 I have represented a modification of my invention. Hereinstead of a single shaft 56 I have two shafts 74 and 75, substantiallyequivalent in length and manner of arrangement with the single shaft 56.The inner ends of the shafts 74 and 75 are journaled in the pivoted box86, while their outer ends are supported in sliding boxes 87, carried onhorizontal segments similar to the segments 58. 81 denotes adriving-pinion on a vertical shaft 91, carried in suitable bearings. Onshaft 91 is a gear-wheel 92 and a gear-wheel 93. The gear-wheel 93transmits motion to a chain of gears 85, which apply their power to andrevolve a shaft 84, on the upper end of which is a bevelpinion 94,engaging a bevel gearwheel 83 on shaft 74, whereby the shaft is driven.Shaft 74 has also thereon a bevel-gear 76, which drives the gear 66, andthus actuates the link-carrying chain on one side of the machine. Thegear-wheel 92 on the shaft 91 actuates a train of gear-wheels 82, which,

apply their power to and rotate a hollow shaft within which theaforesaid shaft 84 is installed. Shaft 80 carries on the upper endthereof a bevel gear-Wheel 79 of larger diameter than the gear-wheel 94,and it meshes with and turns a gear-wheel 78 on the shaft 75. Power iscarried from shaft 75 to the link-carrying chain on the other side ofthe machine through the medium of the interacting gears 77 and 67, andit will be observed that while the gear-wheel 66 revolves in onedirection the gear-wheel 67 revolves in the opposite direction. Theoperation of the gears 83 and 94 is identical with that of thegear-wheels 59 and 52, and the result on the chain at one side of themachine is precisely similar, and also the operation of the gear-wheels78 and 84 is precisely the same as that of the gear-wheels 59 and 52 andalso as the gear-wheels 83 and 94, and consequently the movement of thechains and links on both sides of the machine is exactly uniform andregular.

In Fig. 10 I have delineated a still further modification of the meansfor making uniform the movement of the chains and eliminating allirregularities. It is unnecessary to describe all the-parts of thisfigure in detail as most of them are the same as in Fig. 5. Instead of asingle shaft 56, however, two shafts 88 and 89 are employed, arranged insuch a manner as to constitute, in effect, a single shaft. Instead ofhaving the gears 60 and 61 placed on one shaft in exactly the same way Ihave the gear-wheel 96 on one shaft with its cogs facing one way and agearwheel 97 on the other shaft with cogs facing the other way. Whilethe gear 96 revolves in one direction, the gear 97 revolves in the otherdirection. A single driving-pinion 98, similar to the pinion 52, isemployed, and this gear 98 instead of driving a single gear, as 99,alone, drives also another gear 99"". The gear 99 revolves in onedirection and is on one of the shafts, as 88, and the gear 99 revolvesin the opposite direction and is on the other shaft, as 89. Hence theresult produced on the two chains in compensating for irregularitiesproduced by the oscillatory and reciprocatory motions of the shafts andthe chains is corrected, and the movement on one side of the machinecorresponds exactly to that on the other side, and the objectionablepuckering or creasing of the cloth is obviated.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a tentering-machine having endless moving chains carryingcloth-clamps, frames supporting the chains, and means for reciprocatingthem and moving them toward each other, means for driving the chainsconsisting essentially of a shaft having a movement of rotation and oneof horizontal oscillation around a pivotal point, two vertical bevelgear-wheels on said shaft on opposite sides of its pivotal point, facingin the same direction on the shaft, and gearing on each frame engagedand actuated by the said vertical gears, for securing uniformity in themovement of the chains.

2. In a tentering-machine having endless. chains carrying cloth-clamps,frames supporting the chains, and means for reciprocat ing themandmoving them laterally toward each other, means for driving the chains,consisting essentially of a shaft having a rotary movement and also oneof horizontal oscillation around a pivot, a bevel-gear on the shaft atone side of the pivot, a bevel-gear driving it of equal size, two bevelgear-wheels on the shaft on opposite sides of the pivotal point, ofequal size and facing in the same direction on the shaft, ahorizontal'gear of equal size ing the shaft, two vertical bevel-gears ofequal size facing in the same direction on the shaft near opposite endsthereof so as to perform precisely the same Work, horizontal bevel-gearsarranged and driven by said two gears, a gearing whereby one of saidhorizontal gears communicates motion to one of the chains, and anothergearing whereby the other horizontal gear communicates motion to theother chain, all arranged so that the two chains may move in the samedirection.

4. In a tentering-machine having endless chains carrying cloth-clamps,means for driving the chains consisting essentially of a shaft having amovement of rotation and also one of horizontal oscillation on a pivotalpoint, vertical bevel gear-Wheels on said shaft on opposite sides of itspivotal point, said gearwheels being placed on the shaft facing in thesame direction, and intermediate connections between said verticalgear-wheels and the chains whereby the latter are actuated with auniform movement.

5. In a tentering-machine having endless chains carrying cloth-clamps,the combination with the chains, of means for driving them consistingessentially of a shaft having a movement of rotation and one ofhorizontal oscillation on a pivotal point, two vertical bevelgear-wheels on said shaft on opposite sides of the pivotal point, saidgear-wheels being placed facing in the same direction on the shaft andbeing of equal size, a drive-gear also on said shaft between the pivotalpoint and one of the aforesaid gears, mechanism for imparting motion tosaid drive-gear, and intervening mechanism between the aforesaidvertical gear-wheels and the chains whereby the movement of thegear-wheels is imparted to the chains and secures uniformity in themovement of the latter.

6. In a tentering-machine having lateral endless chains carryingcloth-clamps, frames supportin the chains, which frames are reciprocatecI and oscillated simultaneously, pivots on which theoscillations take place, said pivots being supported on adjustableblocks, means for adjusting the blocks on opposite sides relatively toeach other, and means for adjusting the clamping-points of thecloth-clamps relatively to the said pivots on which the oscillatoryaction occurs in order that a proper stretching of the threads of thecloth may take place during the oscillation.

7. In a tentering-machine having endless chains carrying cloth-clamps,and frames supporting said chains, said frames having guides or ways anda separating-partition, in which guides the chains move, means forimparting a reciprocatory movement to said frames as well as a movementthereof bodily toward each other, said means consisting essentially ofhorizontal bars, central pivots for supporting them and pivotalconnections between the outer ends of the bars and the said frames, saidlatter pivotal connections including adjustable blocks with means foradjusting the blocks relatively to each other, and means for adjustingthe clamping-points of the cloth relatively to the pivots ofthelast-mentioned pivotal connections.v

8. In a tentering-niachine having endless chains carrying cloth-clamps,and frames supporting said chains, means for imparting a reciprocatorymovement to said frames as well as a movement bodily toward each other,said means including bars or rods, pivots therefor, adjustable blocksthereon carrying pivots, means for adjusting said blocks relatively toeach other, and means carrying the chain-supporting frames, which meansare adjustable for the purpose of regulating the position of theclampingpoints of the cloth relatively to the last-mentioned pivots ofthe movable blocks, in order that a proper stretching of the threads ofthe cloth may take place.

9. In a tentering-machine having endless moving chains carryingcloth-clamps, and frames supporting the chains, which frames arereciprocated and oscillated simultaneously, means for performing thereciproca tion and oscillation and at the same time al lowing of anadjustment of the parts, consisting essentially of vibratorycross-pieces which extend between the two sides of the machine, pivotsnear the ends of these cross-pieces on which pivots the oscillationsoccur, adjustable blocks supporting the pivots, plates through which thepivots pass, slides in said plates connected to the frames, and anadjusting-screw in the slides for shifting them with relation toadjacent pivots and thus adj usting the clamping-points of the clothrelatively to said pivots on which the oscillatory action occurs inorder that a proper stretching of the threads of the cloth may takeplace during the oscillation.

10. In a tentering-machine having endless chains carrying cloth-clamps,frames supporting said chains, said frames having guides or ways, and aseparating-partition, in which guides the chains move, means forimparting a reciprocatory movement to said frames as well as a bodilymovement toward each other, said means consisting essentially of avibratory shaft having a central pivot on which the vibration takesplace, and means for adjusting the frames relatively to each other,consisting essentially of blocks, and a screw-rod connecting saidblocks, and means for adjusting the frames relatively to the pivots onwhich the oscillatory action occurs, said pivots being supported in saidblocks, and said means consisting essentially of devices connected tothe frames and provided with screw-rods for changing the position of theclamping-points of the cloth-clamps relatively to the pivots.

11. In a tentering-machine having endless moving chains carryingcloth-clamps, and frames supporting the chains, means for re?ciprocating them and moving them bodily toward each other, consistingessentially of pivoted crosspieces, and adjustable means on saidcross-pieces having pivots near the ends forming a part of the rotaryconnection between the cross-pieces and the chain-carrying frames, andmeans for driving the chains consisting essentially of a shaft having amovement of rotation and one of horizontal oscillation on a pivotalpoint, two vertical bevel gear-wheels facing in the same direction onsaid shaft on opposite sides of the pivotal point, and gearingconnections between said gear-wheels and the chains, for

securing uniformity in the movement of the I latter.

Signed at New York city this 7th day of June, 1905.

HOWARD L. QUICK. Witnesses:

JOHN H. HAZELTON, I. HEIBERG.

